The caterpillars for the regal moth are called hickory horned devils. Citheronia regalis, the regal moth or royal walnut moth, is a North American moth in the family Saturniidae. The adult has a wingspan of 3.75-6.1 inches!
The caterpillars for the regal moth are called hickory horned devils. Citheronia regalis, the regal moth or royal walnut moth, is a North American moth in the family Saturniidae. The adult has a wingspan of 3.75-6.1 inches!